EP1226615A1 - Device for protecting against electrostatic charging of a battery - Google Patents
Device for protecting against electrostatic charging of a batteryInfo
- Publication number
- EP1226615A1 EP1226615A1 EP01986799A EP01986799A EP1226615A1 EP 1226615 A1 EP1226615 A1 EP 1226615A1 EP 01986799 A EP01986799 A EP 01986799A EP 01986799 A EP01986799 A EP 01986799A EP 1226615 A1 EP1226615 A1 EP 1226615A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- battery
- hold
- down device
- negative pole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000007786 electrostatic charging Methods 0.000 title claims abstract description 11
- 239000004033 plastic Substances 0.000 claims abstract description 13
- 229920003023 plastic Polymers 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000011343 solid material Substances 0.000 claims description 3
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 239000004020 conductor Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000002313 adhesive film Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the invention relates to a device for protecting against electrostatic charging of a battery, in particular a vehicle battery, with a plastic housing and a surface which is provided with a film which has a surface resistance of ⁇ 1 "10 9 ohms
- Batteries for vehicles with an internal combustion engine usually comprise a multi-cell lead-acid battery, in which the individual galvanic cells are arranged in a common housing or battery box.
- This housing (hereinafter referred to as the plastic housing) is made of injection-molded plastics for production reasons and costs. in particular polypropylene, acrylonitrile-butadiene-styrene or acrylate copolymers.
- plastics are known to have a tendency to build up static charges, since charge separations created by friction on their surface can only be compensated for very slowly and are often spontaneously compensated by arcing or tufts.
- plastic housings with antistatic properties are known, for example, from DE-A 21 57 290 or DE-A 37 25 575, which reduce or even avoid the electrostatic charging of the plastic or battery housing.
- the invention is therefore based on the object of specifying a device for protecting against electrostatic charging of a battery, which is of particularly simple design and is suitable for repeated use and for known plastic housings without modification thereof.
- the object is achieved according to the invention by a device for protecting against electrostatic charging of a battery with a plastic housing and a surface which is provided with a film which has a surface resistance of ⁇ 1 '10 9 ohms, the film being electrically conductive and detachable as well is arranged flush on the surface of the battery.
- a device for protecting against electrostatic charging of a battery with a plastic housing and a surface which is provided with a film which has a surface resistance of ⁇ 1 '10 9 ohms, the film being electrically conductive and detachable as well is arranged flush on the surface of the battery.
- Such a flexibly applied to the surface, electrically conductive film with a surface resistance ⁇ 1 'IQ 9 ohms prevents electrostatic charging of the battery.
- charge separation due to friction which leads to a spark discharge of the battery, which in turn can lead to an explosion, is reliably avoided.
- the film is expediently formed from a polymeric material which is provided with
- the conductive substance is preferably graphite, a metal or an organic semiconductor.
- the film as such is suitable for dissipating the electrostatic charge, for example the charge separation caused by friction.
- Metallic contact elements for dissipation known from the prior art can therefore be omitted due to the electrically conductive design of the film.
- the incorporation of additives with electronic conductivity such as graphite or metals, for example aluminum, makes the film permanently antistatic.
- Such a solid film is particularly flexible.
- the film can be cut in the manner of a fabric.
- the film is advantageously adapted to the dimensions of the surface of the battery. This makes it possible that the device for protection against electrostatic charge can be used for [any type of battery by cutting the film in accordance with the dimensions of the respective battery surface.
- the film has stiffening ribs for shaping, which curl or fold the particularly flexible film safely avoid.
- the film can be arranged in a frame opening of a profile frame.
- a hold-down device for pressing the film onto the surface is provided for the electrically conductive contacting of the film to the negative pole.
- the film has at least one recess for fastening the hold-down device.
- the cutout is a hole punched into the film.
- one or more cutouts can be provided.
- the hold-down device preferably has at least one cylindrical pin, which is expediently arranged in the recess in the film and in at least one fastening hole in the battery, in particular in a so-called blind hole for a conventional covering of the negative pole.
- the hold-down device can be designed as a T-profile or spiral.
- pole caps The usual covering of the negative or positive pole of the battery (so-called pole caps) can be omitted due to the largely complete covering of the battery surface by means of the film.
- the film advantageously has corresponding colorations in the region of the negative and / or positive pole, e.g. red or blue colors, on.
- the hold-down device is made of a solid material, for example solid plastic, for particularly secure holding down of the film and contacting it with the negative pole.
- the hold-down device has an angle of inclination. This ensures that due to the arrangement of the hold-down device in the immediate area of the negative pole and due to its curvature Foil arranged between the hold-down device and the negative pole is pressed onto the negative pole.
- Such a film which rests on the negative pole with pressure, provides particularly good electrical contact for dissipating the electrostatic charges.
- Figure 1 schematically in side view of a battery with a detachably arranged on the surface
- Figure 2 schematically shows a plan view of the battery according to Figure 1
- Figure 3 shows a hold-down device for the arrangement of the
- FIG. 1 and FIG. 4 schematically show a top view of the film with a spiral hold-down device.
- FIG. 1 schematically shows a side view of a film 1, which is detachably arranged on a battery 2, in particular a vehicle battery.
- the film 1 is made of an electrically conductive material and completely covers the battery surface.
- a polymeric material for example polyethylene or PVC, which is provided with an electrically conductive material, is preferably provided as the electrically conductive material for the film 1.
- the conductive substance is a graphite, a metal, for example aluminum, or an organic semiconductor.
- the film 1 is particularly flexible.
- the slide 1 is in the manner of a substance can be cut to size and can thus be adapted to any type of battery, in particular to the dimensions of the respective battery surface, in particular cut to size flush with the edge.
- a hold-down device 4 is provided for pressing the film 1 onto the battery surface, in particular onto one of the poles P, for example the negative pole, of the battery 2.
- the hold-down device 4 is arranged in the region of the negative pole in question for pressing down the film 1 and in particular for securely contacting it with the negative pole. This enables the electrostatic charge to be dissipated by means of the film 1 contacting the negative pole or the positive pole.
- the film 1 is shown in plan view.
- the film 1 is provided with a predeterminable number of stiffening ribs 3 for shaping the film 1. This prevents the film 1 from curling or twisting.
- the stiffening ribs 3 are designed, for example, as plastic strips which e.g. are sprayed on or glued on. Depending on the type and size of the battery surface of the film 1 to be covered, this can alternatively or additionally be used in an opening of a profile frame. This gives the film 1 a shape for securely covering the battery surface.
- the hold-down device 4 is arranged in at least one recess 6 in the film 1 and in a fastening hole (not shown) of the negative pole. At least one serves as the mounting hole for the negative pole the so-called pocket holes of the battery 2, which are usually provided for receiving the so-called polar caps (according to DIN EN 60095-1).
- the recess 6 is, for example, a hole punched into the film 1. The hole is punched into the film 1 depending on the position of the blind hole of the negative pole on the battery surface of the respective battery type.
- the hold-down 4 is shown schematically in side view.
- a corresponding pin 8 is provided for a firm hold of the hold-down device 4 in the fastening hole.
- the pin 8 is guided into the recess 6 provided in the film 1 and arranged in the fastening hole.
- the hold-down device 4 is curved for a particularly secure electrical contact of the film 1 with the negative pole of the battery 2.
- the hold-down 4 is made of plastic.
- the hold-down device 4 is designed as a T-profile, the contact element 10 of the T-profile arranged to the negative pole having an angle of inclination ⁇ .
- FIG. 4 shows an alternative embodiment of the hold-down device 4.
- the hold-down device 4 is designed spirally.
- the spiral holding-down device 4 is guided and held on the thread of the negative pole for reliable contacting of the film 1 with the negative pole of the battery 2.
- the spiral hold-down device 4 is made in one part or in several parts.
- FIG. 4 shows a multi-part spiral 11 which surrounds one of the poles, in particular the negative pole. This enables a particularly simple and secure mounting and contacting of the film 1 with the negative pole of the battery 2.
- the spiral shape enables simple and quick installation of the film 1 on the battery 2 without any tools.
- the film 1 can be retrofitted with such a spiral hold-down device 4 to existing batteries 2.
- the film 1 has corresponding colorations in the region of the two poles P in a manner not shown.
- Battery surface is arranged is that it is interchangeable and thus reusable.
- the film 1 can be tailored to any type of battery due to its properties.
- electrostatic charging of the battery 2 having a plastic housing is reliably avoided.
- the film 1 is also particularly inexpensive to manufacture. Additional elements, e.g. Metallic contact strips to the negative pole, to discharge the electrostatic charge can be omitted due to the properties of the film 1.
- the device for protecting against electrostatic charge, which is designed as a film 1, is thus of particularly simple design, as a result of which particularly simple manufacture and handling are possible.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a device for protecting against electrostatic charging of a battery, comprising a plastic housing and a surface which has a film (1) exhibiting a surface resistance of < 1 . 109 ohms. The aim of the invention is to construct said device, which can be used on multiple occasions, in a particularly simple manner. According to the invention, the film (1) is electrically conductive and is arranged in a detachable manner around the edge of the surface of the battery (2).
Description
Beschreibungdescription
Vorrichtung zum Schutz vor elektrostatischer Aufladung einer BatterieDevice for protection against electrostatic charging of a battery
Die Erfindung betrifft eine Vorrichtung zum Schutz vor elektrostatischer Aufladung einer Batterie, insbesondere einer Fahrzeugbatterie, mit einem Kunststoffgehause und einer Oberfläche, welche mit einer Folie, die einen Oberflächenwiderstand < 1 " 109 Ohm aufweist, versehen istThe invention relates to a device for protecting against electrostatic charging of a battery, in particular a vehicle battery, with a plastic housing and a surface which is provided with a film which has a surface resistance of <1 "10 9 ohms
Batterien für Fahrzeuge mit einem Verbrennungsmotor umfassen üblicherweise eine mehrzellige Blei-Säure- Batterie, bei der die einzelnen galvanischen Zellen in einem gemeinsamen Gehäuse oder Batteriekasten angeordnet sind. Dieses Gehäuse (im weiteren Kunststoffgehause genannt) wird aus produktionstechnischen Gründen und Kostengründen aus spritzgußfähigen Kunststoffen,
insbesondere Polypropylen-, Acrylnitril-Butadien-Styren- oder Acrylatcopolymerisaten, hergestellt. Kunststoffe neigen jedoch bekanntermaßen leicht zu statischen Aufladungen, da durch Reibung an ihrer Oberfläche erzeugte Ladungstrennungen sich nur sehr langsam wieder ausgleichen und häufig durch Funkenüberschlag oder Büschelentladungen spontan ausgeglichen werden.Batteries for vehicles with an internal combustion engine usually comprise a multi-cell lead-acid battery, in which the individual galvanic cells are arranged in a common housing or battery box. This housing (hereinafter referred to as the plastic housing) is made of injection-molded plastics for production reasons and costs. in particular polypropylene, acrylonitrile-butadiene-styrene or acrylate copolymers. However, plastics are known to have a tendency to build up static charges, since charge separations created by friction on their surface can only be compensated for very slowly and are often spontaneously compensated by arcing or tufts.
Im Zusammenhang mit der für Blei-Säure-Akkumulatoren typischen Knallgasentwicklung bei Überladung der Batterie oder des Akkumulators kann die durch Funkenüberschlag erfolgende statische Entladung zur Zündung des Knallgasgemisches und einer dadurch bedingten Zerstörung der Batterie führen. Insbesondere sind in solchen Fällen Mitarbeiter von Servicestationen bei der Batterienachladung bzw. Batteriepflege betroffen. Auch spontan im Fahrzeug stattfindende Batterieexplosionen führen neben dem Ausfall der elektrischen Versorgung des Fahrzeugs oft auch zu Folgeschäden aufgrund von freigesetzter Schwefelsäure.In connection with the detonating gas development typical of lead-acid accumulators when the battery or the accumulator is overcharged, the static discharge caused by arcing can ignite the detonating gas mixture and thus destroy the battery. In such cases, employees of service stations are particularly affected when recharging or maintaining batteries. In addition to the failure of the vehicle's electrical supply, battery explosions that occur spontaneously in the vehicle often also lead to consequential damage due to the released sulfuric acid.
Zur Vermeidung oder Verminderung von derartigen vorgenannten Schäden sind beispielsweise aus der DE-A 21 57 290 oder DE-A 37 25 575 Kunststoffgehause mit antistatischen Eigenschaften bekannt, die die elektrostatische Aufladung des Kunststoff- oder Batteriegehäuses verringern oder gar ganz vermeiden.To avoid or reduce such aforementioned damage, plastic housings with antistatic properties are known, for example, from DE-A 21 57 290 or DE-A 37 25 575, which reduce or even avoid the electrostatic charging of the plastic or battery housing.
Aus der DE 198 32 929 Cl ist beispielsweise zur Vermeidung der elektrostatischen Aufladung der Batterie eine mit dem Minuspol der Batterie galvanisch leitend verbundene und Wassermoleküle bindende Klebefolie bekannt. Nachteilig dabei ist, daß diese Klebefolie fest auf der Oberfläche der Batterie aufgebracht ist und somit ein Austausch nicht
ermöglicht ist. Vielmehr kann eine derartige Klebefolie nur einmal verwendet werden. Darüber hinaus muß gewährleistet sein, daß das Material der Folie zur Erzielung des Oberflachenwiderstands von < 1 ' 109 Ohm (Richtlinie des Hauptverbandes der gewerblichen Berufsgenossenschaften „Statische Elektrizität", 4. Ausgabe, 1980, Seite 10) zur Bindung von hinreichend vielen Wassermoleküle geeignet ist. Zur Ableitung der elektrostatischen Aufladung ist ferner ein metallischer Anschlußkontakt vorgesehen.From DE 198 32 929 C1, for example, in order to avoid electrostatic charging of the battery, an adhesive film which is electrically conductively connected to the negative pole of the battery and binds water molecules is known. The disadvantage here is that this adhesive film is firmly applied to the surface of the battery and therefore not an exchange is possible. Rather, such an adhesive film can only be used once. In addition, it must be ensured that the material of the film is suitable for binding a sufficient number of water molecules in order to achieve the surface resistance of <1 '10 9 ohms (Guideline of the Main Association of Commercial Professional Associations "Static Electricity", 4th Edition, 1980, page 10) A metallic connection contact is also provided to discharge the electrostatic charge.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zum Schutz vor elektrostatischer Aufladung einer Batterie anzugeben, welche besonders einfach ausgeführt und für einen mehrmaligen Einsatz sowie für bekannte Kunststoffgehause ohne deren Modifikation geeignet ist.The invention is therefore based on the object of specifying a device for protecting against electrostatic charging of a battery, which is of particularly simple design and is suitable for repeated use and for known plastic housings without modification thereof.
Die Aufgabe wird erfindungsgemäß gelöst durch eine Vorrichtung zum Schutz vor elektrostatischer Aufladung einer Batterie mit einem Kunststoffgehause und einer Oberfläche, welche mit einer Folie, die einen Oberflächenwiderstand < 1 ' 109 Ohm aufweist, versehen ist, wobei die Folie elektrisch leitfähig ist und lösbar sowie randbundig auf der Oberfläche der Batterie angeordnet ist. Durch eine derartige flexibel auf die Oberfläche aufgebrachte, elektrisch leitfähige Folie mit einem Oberflächenwiderstand < 1 ' IQ9 Ohm ist eine elektrostatische Aufladung der Batterie besonders sicher vermieden. Insbesondere ist eine durch Reibung bedingte Ladungstrennung, die zu einer Funkenentladung der Batterie führt, die wiederum zur Explosion dieser führen kann, sicher vermieden.
Zweckmäßigerweise ist die Folie aus einem polymeren Material gebildet, welches mit einem elektrisch leitfähigen Stoff versehen ist. Vorzugsweise ist der leitfähige Stoff Graphit, ein Metall oder ein organischer Halbleiter. Durch eine derartige Verwendung von internen Antistatika für die Folie ist die Folie als solche für die Ableitung der elektrostatischen Aufladung, z.B. der durch Reibung bedingten Ladungstrennung, geeignet. Aus dem Stand der Technik bekannte metallische Kontaktelemente zur Ableitung können somit aufgrund der elektrisch leitenden Ausführung der Folie entfallen. Darüber hinaus ist die Folie durch eine derartige Einarbeitung von Zuschlagstoffen mit elektronischer Leitfähigkeit wie Graphit oder Metalle, z.B. Aluminium, permanent antistatisch ausgeführt. Wohingegen bei der aus dem Stand der Technik bekannten wasserbindenden Folie immer gewährleistet sein muß, daß eine ausreichend große Menge an Wassermolekülen zur Erzielung des vorgegebenen Oberflächenwiderstandes im Folienstoff gebunden ist. Eine derartige feststoffliche Folie ist besonders flexibel ausgeführt.The object is achieved according to the invention by a device for protecting against electrostatic charging of a battery with a plastic housing and a surface which is provided with a film which has a surface resistance of <1 '10 9 ohms, the film being electrically conductive and detachable as well is arranged flush on the surface of the battery. Such a flexibly applied to the surface, electrically conductive film with a surface resistance <1 'IQ 9 ohms prevents electrostatic charging of the battery. In particular, charge separation due to friction, which leads to a spark discharge of the battery, which in turn can lead to an explosion, is reliably avoided. The film is expediently formed from a polymeric material which is provided with an electrically conductive material. The conductive substance is preferably graphite, a metal or an organic semiconductor. By using internal antistatic agents for the film in this way, the film as such is suitable for dissipating the electrostatic charge, for example the charge separation caused by friction. Metallic contact elements for dissipation known from the prior art can therefore be omitted due to the electrically conductive design of the film. In addition, the incorporation of additives with electronic conductivity such as graphite or metals, for example aluminum, makes the film permanently antistatic. Whereas, in the case of the water-binding film known from the prior art, it must always be ensured that a sufficiently large amount of water molecules is bound in the film material in order to achieve the specified surface resistance. Such a solid film is particularly flexible.
Für die bevorzugte randbündige Anordnung der Folie auf der Batterieoberfläche ist die Folie in der Art eines Stoffes zuschneidbar. Die Folie ist vorteilhafterweise auf die Abmessungen der Oberfläche der Batterie angepaßt. Hierdurch ist ermöglicht, daß die Vorrichtung zum Schutz vor elektrostatischer Aufladung für [jeden Batterietyp durch Zuschneiden der Folie entsprechend den Abmessungen der jeweiligen Batterieoberfläche einsetzbar ist. Für eine die gesamte Batterieoberfläche weitgehenden Abdeckung weist die Folie Versteifungsrippen zur Formgebung auf, die ein Zusammenrollen oder Umknicken der besonders flexiblen Folie
sicher vermeiden. Zusätzlich oder alternativ kann die Folie in einer Rahmenöffnung eines Profilrahmens angeordnet sein.For the preferred flush arrangement of the film on the battery surface, the film can be cut in the manner of a fabric. The film is advantageously adapted to the dimensions of the surface of the battery. This makes it possible that the device for protection against electrostatic charge can be used for [any type of battery by cutting the film in accordance with the dimensions of the respective battery surface. For a covering covering the entire battery surface, the film has stiffening ribs for shaping, which curl or fold the particularly flexible film safely avoid. Additionally or alternatively, the film can be arranged in a frame opening of a profile frame.
Zur elektrisch leitenden Kontaktierung der Folie zum Minuspol ist ein Niederhalter zum Aufdrücken der Folie auf die Oberfläche vorgesehen. Zur Befestigung des Niederhalters weist die Folie mindestens eine Aussparung auf. In besonders einfacher Ausführung ist die Aussparung ein in die Folie gestanztes Loch. In Abhängigkeit von der Ausführung des Niederhalters können ein oder mehrere Aussparungen vorgesehen sein. Der Niederhalter weist vorzugsweise mindestens einen zylinderartigen Stift auf, der zweckmäßigerweise in der Aussparung der Folie und in mindestens einem Befestigungsloch der Batterie, insbesondere in einem sogenannten Sackloch für eine übliche Abdeckung des Minuspols, angeordnet ist. Je nach Vorgabe kann der Niederhalter als T-Profil oder spiralförmig ausgebildet sein. Die übliche Abdeckung des Minus- bzw. des Pluspols der Batterie (sogenannte Polkappen) kann aufgrund der weitgehend vollständigen Abdeckung der Batterieoberfläche mittels der Folie entfallen. Zur Kennzeichnung des Minus- bzw. des Pluspols weist die Folie vorteilhafterweise im Bereich des Minus- und/oder des Pluspols entsprechende Einfärbungen, z.B. rote bzw. blaue Einfärbungen, auf.A hold-down device for pressing the film onto the surface is provided for the electrically conductive contacting of the film to the negative pole. The film has at least one recess for fastening the hold-down device. In a particularly simple design, the cutout is a hole punched into the film. Depending on the design of the hold-down device, one or more cutouts can be provided. The hold-down device preferably has at least one cylindrical pin, which is expediently arranged in the recess in the film and in at least one fastening hole in the battery, in particular in a so-called blind hole for a conventional covering of the negative pole. Depending on the specification, the hold-down device can be designed as a T-profile or spiral. The usual covering of the negative or positive pole of the battery (so-called pole caps) can be omitted due to the largely complete covering of the battery surface by means of the film. To identify the negative or positive pole, the film advantageously has corresponding colorations in the region of the negative and / or positive pole, e.g. red or blue colors, on.
Für eine besonders sichere Niederhaltung der Folie und Kontaktierung dieser mit dem Minuspol ist der Niederhalter aus einem festen Material, z.B. festen Kunststoff, gebildet. Zusätzlich weist der Niederhalter einen Neigungswinkel auf. Hierdurch ist sichergestellt, daß aufgrund der Anordnung des Niederhalters im unmittelbaren Bereich des Minuspols und aufgrund dessen Krümmung die
zwischen dem Niederhalter und dem Minuspol angeordnete Folie auf den Minuspol gedrückt wird. Durch eine derartige mit Druck auf dem Minuspol aufliegenden Folie ist ein besonders guter elektrischer Kontakt zur Ableitung der elektrostatischen Aufladungen gegeben.The hold-down device is made of a solid material, for example solid plastic, for particularly secure holding down of the film and contacting it with the negative pole. In addition, the hold-down device has an angle of inclination. This ensures that due to the arrangement of the hold-down device in the immediate area of the negative pole and due to its curvature Foil arranged between the hold-down device and the negative pole is pressed onto the negative pole. Such a film, which rests on the negative pole with pressure, provides particularly good electrical contact for dissipating the electrostatic charges.
Ausführungsbeispiele der Erfindung werden anhand einer Zeichnung näher erläutert. Darin zeigen:Embodiments of the invention are explained in more detail with reference to a drawing. In it show:
Figur 1 schematisch in Seitenansicht eine Batterie mit einer lösbar auf der Oberfläche angeordnetenFigure 1 schematically in side view of a battery with a detachably arranged on the surface
Folie, Figur 2 schematisch eine Draufsicht auf die Batterie gemäß Figur 1, Figur 3 schematisch einen Niederhalter zur Anordnung derFoil, Figure 2 schematically shows a plan view of the battery according to Figure 1, Figure 3 shows a hold-down device for the arrangement of the
Folie gemäß Figur 1, und Figur 4 schematisch eine Draufsicht auf die Folie mit einem spiralförmigen Niederhalter.The film according to FIG. 1 and FIG. 4 schematically show a top view of the film with a spiral hold-down device.
Einander entsprechende Teile sind in allen Figuren mit den gleichen Bezugszeichen versehen.Corresponding parts are provided with the same reference symbols in all figures.
Figur 1 zeigt schematisch eine Seitenansicht einer Folie 1, welche auf einer Batterie 2, insbesondere Fahrzeugbatterie, lösbar angeordnet ist. Die Folie 1 ist aus elektrisch leitfähigem Material und deckt die Batterieoberfläche vollständig ab. Als elektrisch leitfähiges Material für die Folie 1 ist bevorzugt ein polymeres Material, z.B. Polyethylen oder PVC, welches mit einem elektrisch leitfähigen Stoff versehen ist, vorgesehen. Der leitfähige Stoff ist ein Graphit, ein Metall, z.B. Aluminium, oder ein organischer Halbleiter. Die Folie 1 ist besonders flexibel ausgeführt. Die Folie 1 ist in der Art eines Stoffes
zuschneidbar und kann somit auf jeden beliebigen Batterietyp, insbesondere auf die Abmessungen der jeweiligen Batterieoberfläche, angepaßt werden, insbesondere randbündig zugeschnitten werden. Zum Aufdrücken der Folie 1 auf die Batterieoberfläche, insbesondere auf einen der Pole P, z.B. den Minuspol, der Batterie 2, ist ein Niederhalter 4 vorgesehen. Der Niederhalter 4 ist je nach Art und Ausführung der abzudeckenden Batterie 2 im Bereich des betreffenden Minuspols zum Niederdrücken der Folie 1 und insbesondere zu deren sicheren Kontaktierung mit dem Minuspol angeordnet. Hierdurch ist eine Ableitung der elektrostatischen Aufladung mittels der mit dem Minuspol oder dem Pluspol kontaktierenden Folie 1 ermöglicht.FIG. 1 schematically shows a side view of a film 1, which is detachably arranged on a battery 2, in particular a vehicle battery. The film 1 is made of an electrically conductive material and completely covers the battery surface. A polymeric material, for example polyethylene or PVC, which is provided with an electrically conductive material, is preferably provided as the electrically conductive material for the film 1. The conductive substance is a graphite, a metal, for example aluminum, or an organic semiconductor. The film 1 is particularly flexible. The slide 1 is in the manner of a substance can be cut to size and can thus be adapted to any type of battery, in particular to the dimensions of the respective battery surface, in particular cut to size flush with the edge. A hold-down device 4 is provided for pressing the film 1 onto the battery surface, in particular onto one of the poles P, for example the negative pole, of the battery 2. Depending on the type and design of the battery 2 to be covered, the hold-down device 4 is arranged in the region of the negative pole in question for pressing down the film 1 and in particular for securely contacting it with the negative pole. This enables the electrostatic charge to be dissipated by means of the film 1 contacting the negative pole or the positive pole.
In Figur 2 ist die Folie 1 in Draufsicht dargestellt. Die Folie 1 ist mit einer vorgebbaren Anzahl von Versteifungsrippen 3 zur Formgebung der Folie 1 versehen. Hierdurch ist ein Zusammenrollen oder ein Umknicken der Folie 1 vermieden. Die Versteifungsrippen 3 sind beispielsweise als Kunststoffstreifen ausgeführt, die z.B. aufgespritzt oder aufgeklebt sind. Je nach Art und Größe der abzudeckenden Batterieoberfläche der Folie 1 kann diese alternativ oder zusätzlich in einer Öffnung eines Profilrahmens eingesetzt werden. Hierdurch ist eine Formgebung der Folie 1 zur sicheren Abdeckung der Batterieoberfläche gegeben.In Figure 2, the film 1 is shown in plan view. The film 1 is provided with a predeterminable number of stiffening ribs 3 for shaping the film 1. This prevents the film 1 from curling or twisting. The stiffening ribs 3 are designed, for example, as plastic strips which e.g. are sprayed on or glued on. Depending on the type and size of the battery surface of the film 1 to be covered, this can alternatively or additionally be used in an opening of a profile frame. This gives the film 1 a shape for securely covering the battery surface.
Für einen sicheren Sitz der Folie 1 auf der Batterieoberfläche ist der Niederhalter 4 in mindestens einer Aussparung 6 der Folie 1 und in einem nicht dargestellten Befestigungsloch des Minuspols angeordnet. Als Befestigungsloch des Minuspols dient mindestens eines
der sogenannten Sacklόcher der Batterie 2, die üblicherweise zur Aufnahme der sogenannten Polkappen vorgesehen sind (nach DIN EN 60095-1). Die Aussparung 6 ist beispielsweise ein in die Folie 1 gestanztes Loch. Das Loch wird dabei in Abhängigkeit von der Lage des Sacklochs des Minuspols auf der Batterieoberfläche des jeweiligen Batterietyps entsprechend in die Folie 1 gestanzt.For a secure fit of the film 1 on the battery surface, the hold-down device 4 is arranged in at least one recess 6 in the film 1 and in a fastening hole (not shown) of the negative pole. At least one serves as the mounting hole for the negative pole the so-called pocket holes of the battery 2, which are usually provided for receiving the so-called polar caps (according to DIN EN 60095-1). The recess 6 is, for example, a hole punched into the film 1. The hole is punched into the film 1 depending on the position of the blind hole of the negative pole on the battery surface of the respective battery type.
In Figur 3 ist der Niederhalter 4 schematisch in Seitenansicht dargestellt. Für einen festen Halt des Niederhalters 4 in dem Befestigungsloch ist ein entsprechender Stift 8 vorgesehen. Der Stift 8 ist in die vorgesehene Aussparung 6 der Folie 1 geführt und in dem Befestigungsloch angeordnet. Für einen besonders sicheren elektrischen Kontakt der Folie 1 mit dem Minuspol der Batterie 2 ist der Niederhalter 4 gekrümmt ausgeführt. Der Niederhalter 4 ist aus Kunststoff gebildet. Beispielsweise ist der Niederhalter 4 als ein T-Profil ausgeführt, wobei das zum Minuspol angeordnete Kontaktelement 10 des T- Profils einen Neigungswinkel α aufweist. Durch einen zur Batterieoberfläche hin gekrümmten Niederhalter 4 mit dem Neigungswinkel α liegt die Folie 1 mit Druck auf einem der Pole P, dem Minus- bzw. dem Pluspol, oder auf der jeweiligen Polklemme auf.In Figure 3, the hold-down 4 is shown schematically in side view. A corresponding pin 8 is provided for a firm hold of the hold-down device 4 in the fastening hole. The pin 8 is guided into the recess 6 provided in the film 1 and arranged in the fastening hole. The hold-down device 4 is curved for a particularly secure electrical contact of the film 1 with the negative pole of the battery 2. The hold-down 4 is made of plastic. For example, the hold-down device 4 is designed as a T-profile, the contact element 10 of the T-profile arranged to the negative pole having an angle of inclination α. By means of a hold-down device 4 with an inclination angle α that is curved toward the battery surface, the film 1 rests with pressure on one of the poles P, the negative or positive pole, or on the respective pole clamp.
Figur 4 zeigt eine alternative Ausführungsform des Niederhalters 4. Dabei ist der Niederhalter 4 spiralförmig ausgeführt. Dabei wird der spiralförmige Niederhalter 4 zur sicheren Kontaktierung der Folie 1 mit dem Minuspol der Batterie 2 am Gewinde des Minuspols geführt und gehalten. Je nach Vorgabe ist der spiralförmigen Niederhalter 4 einteilig oder mehrteilig ausgeführt. In der Figur 4 ist eine mehrteilige Spirale 11, welche um einen der Pole,
insbesondere den Minuspol, angeordnet ist. Hierdurch ist eine besonders einfache und sichere Halterung sowie Kontaktierung der Folie 1 mit dem Minuspol der Batterie 2 ermöglicht. Darüber hinaus ist durch die Spiralform eine einfache und schnelle Montage der Folie 1 auf die Batterie 2 ohne Hilfsmittel ermöglicht. Ferner kann die Folie 1 mit einem derartigen spiralförmigen Niederhalter 4 auf bereits bestehende Batterien 2 nachgerüstet werden.FIG. 4 shows an alternative embodiment of the hold-down device 4. The hold-down device 4 is designed spirally. The spiral holding-down device 4 is guided and held on the thread of the negative pole for reliable contacting of the film 1 with the negative pole of the battery 2. Depending on the specification, the spiral hold-down device 4 is made in one part or in several parts. FIG. 4 shows a multi-part spiral 11 which surrounds one of the poles, in particular the negative pole. This enables a particularly simple and secure mounting and contacting of the film 1 with the negative pole of the battery 2. In addition, the spiral shape enables simple and quick installation of the film 1 on the battery 2 without any tools. Furthermore, the film 1 can be retrofitted with such a spiral hold-down device 4 to existing batteries 2.
Zur Kennzeichnung des Minus- und/oder des Pluspols weist die Folie 1 in nicht näher dargestellter Art und Weise im Bereich der beiden Pole P entsprechende Einfärbungen auf. Die Vorteile der beschriebenen flexiblen Folie 1, welche lösbar mittels des Niederhalters 4 auf derTo identify the minus and / or the positive pole, the film 1 has corresponding colorations in the region of the two poles P in a manner not shown. The advantages of the described flexible film 1, which is detachable by means of the holding-down device 4 on the
Batterieoberfläche angeordnet ist, besteht darin, daß diese austauschbar und somit wieder einsetzbar ist. Darüber hinaus kann die Folie 1 aufgrund ihrer Eigenschaften auf jeden beliebigen Batterietyp zugeschnitten werden. Ferner ist aufgrund der in das Folienmaterial eingebrachten Zuschlagstoffe mit elektrischer Leitfähigkeit eine elektrostatische Aufladung der ein Kunststoffgehause aufweisenden Batterie 2 sicher vermieden. Die Folie 1 ist auch besonders kostengünstig herstellbar. Zusätzliche Elemente, z.B. metallischer Kontaktstreifen zum Minuspol, zur Ableitung der elektrostatischen Aufladung können aufgrund der Eigenschaften der Folie 1 entfallen. Somit ist die als Folie 1 ausgeführte Vorrichtung zum Schutz vor elektrostatischer Aufladung besonders einfach ausgeführt, wodurch eine besonders einfache Herstellung und Handhabung möglich ist .
Battery surface is arranged is that it is interchangeable and thus reusable. In addition, the film 1 can be tailored to any type of battery due to its properties. Furthermore, due to the additives with electrical conductivity introduced into the film material, electrostatic charging of the battery 2 having a plastic housing is reliably avoided. The film 1 is also particularly inexpensive to manufacture. Additional elements, e.g. Metallic contact strips to the negative pole, to discharge the electrostatic charge can be omitted due to the properties of the film 1. The device for protecting against electrostatic charge, which is designed as a film 1, is thus of particularly simple design, as a result of which particularly simple manufacture and handling are possible.
Claims
1. Vorrichtung zum Schutz vor elektrostatischer Aufladung einer Batterie (2) mit einem Kunststoffgehause und einer Oberfläche, welche mit einer Folie (1), die einen Oberflächenwiderstand < 1 ' 109 Ohm aufweist, versehen ist, d a d u r c h g e k e n n z e i c h n e t, daß die Folie1. Device for protection against electrostatic charging of a battery (2) with a plastic housing and a surface which is provided with a film (1) having a surface resistance <1 '10 9 ohms, characterized in that the film
(1) elektrisch leitfähig ist und lösbar sowie randbündig auf der Oberfläche der Batterie (2) angeordnet ist.(1) is electrically conductive and is detachable and flush with the edge on the surface of the battery (2).
2. Vorrichtung nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, daß die Folie (1) aus einem polymeren Material gebildet ist, welches mit einem elektrisch leitfähigen Stoff versehen ist.2. Apparatus according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the film (1) is formed from a polymeric material which is provided with an electrically conductive substance.
3. Vorrichtung nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t, daß der leitfähige Stoff Graphit, ein Metall oder ein organischer Halbleiter ist. 3. Device according to claim 2, characterized in that the conductive substance is graphite, a metal or an organic semiconductor.
4. Vorrichtung nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t, daß die Folie (1) mit Versteifungsrippen (3) ausgeführt ist.4. Device according to one of claims 1 to 3, that the film (1) is designed with stiffening ribs (3).
5. Vorrichtung nach einem der Ansprüche 1 bis 4, d a d u r c h g e k e n n z e i c h n e t, daß die Folie5. Device according to one of claims 1 to 4, d a d u r c h g e k e n n z e i c h n e t that the film
(1) mindestens eine Aussparung (6) zur Befestigung aufweist .(1) has at least one recess (6) for attachment.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, d a d u r c h g e k e n n z e i c h n e t, daß ein Niederhalter (4) zum Aufdrücken der Folie (1) auf die Oberfläche zur elektrisch leitenden Kontaktierung der Folie6. Device according to one of claims 1 to 5, that a holding device (4) for pressing the film (1) onto the surface for electrically conductive contacting of the film
(1) zum Pol (P) der Batterie (2) vorgesehen ist.(1) to the pole (P) of the battery (2) is provided.
7. Vorrichtung nach Anspruch 6, d a d u r c h g e k e n n z e i c h n e t, daß der Niederhalter (4) in der Aussparung (6) der Folie (1) und in einem Befestigungsloch der Batterie (2) angeordnet ist.7. The device according to claim 6, d a d u r c h g e k e n n z e i c h n e t that the hold-down device (4) in the recess (6) of the film (1) and in a fastening hole of the battery (2) is arranged.
8. Vorrichtung nach Anspruch 6 oder 7, d a d u r c h g e k e n n z e i c h n e t, daß der Niederhalter (4) aus einem festen Material als T-Element ausgebildet ist und einen Neigungswinkel (α) aufweist.8. Apparatus according to claim 6 or 7, d a d u r c h g e k e n n z e i c h n e t that the hold-down device (4) is made of a solid material as a T-element and has an inclination angle (α).
9. Vorrichtung nach Anspruch 6 oder 7, d a d u r c h g e k e n n z e i c h n e t, daß der Niederhalter (4) aus einem festen Material spiralförmig ausgebildet ist.9. Apparatus according to claim 6 or 7, d a d u r c h g e k e n n z e i c h n e t that the hold-down device (4) is formed from a solid material spiral.
10. Vorrichtung nach einem der Ansprüche 1 bis 9, d a d u r c h g e k e n n z e i c h n e t, daß die Folie (1) im Bereich des Minuspols (P) und/oder des Pluspols (P) eine vorgebbare Einfärbung aufweist.10. The device according to one of claims 1 to 9, characterized in that the film (1) in the region of the negative pole (P) and / or the positive pole (P) has a predeterminable color.
11. Vorrichtung nach einem der Ansprüche 1 bis 10, d a d u r c h g e k e n n z e i c h n e t, daß die Folie (1) auf die Abmessungen der Oberfläche der Batterie (2) angepaßt ist. 11. The device according to any one of claims 1 to 10, that the film (1) is adapted to the dimensions of the surface of the battery (2).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10049455A DE10049455A1 (en) | 2000-10-06 | 2000-10-06 | System for protecting vehicle battery from electrostatic discharge and destructive explosion, comprises slightly-conductive film detachably-fixed to battery surface |
DE10049455 | 2000-10-06 | ||
PCT/EP2001/011278 WO2002031899A1 (en) | 2000-10-06 | 2001-09-29 | Device for protecting against electrostatic charging of a battery |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1226615A1 true EP1226615A1 (en) | 2002-07-31 |
Family
ID=7658850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01986799A Withdrawn EP1226615A1 (en) | 2000-10-06 | 2001-09-29 | Device for protecting against electrostatic charging of a battery |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1226615A1 (en) |
JP (1) | JP2004511886A (en) |
DE (1) | DE10049455A1 (en) |
WO (1) | WO2002031899A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100614378B1 (en) | 2004-11-29 | 2006-08-21 | 삼성에스디아이 주식회사 | Battery pack capable of preventing electrification |
JP2007323909A (en) * | 2006-05-31 | 2007-12-13 | Sanyo Electric Co Ltd | Battery pack |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59119559A (en) * | 1982-12-27 | 1984-07-10 | Fujitsu Ltd | Reel lock structure |
US4579600A (en) * | 1983-06-17 | 1986-04-01 | Texas Instruments Incorporated | Method of making zero temperature coefficient of resistance resistors |
JPH04101353A (en) * | 1990-08-20 | 1992-04-02 | Matsushita Electric Ind Co Ltd | Lead-acid secondary battery |
JP2512833B2 (en) * | 1990-12-29 | 1996-07-03 | アキレス株式会社 | Conductive color particles and conductive decorative sheet using the particles |
JPH04264355A (en) * | 1991-02-19 | 1992-09-21 | Matsushita Electric Ind Co Ltd | Lead acid battery |
JPH0562657A (en) * | 1991-09-04 | 1993-03-12 | Matsushita Electric Ind Co Ltd | Lead-acid storage battery |
JPH05159627A (en) * | 1991-12-09 | 1993-06-25 | Shin Etsu Polymer Co Ltd | Conductive thermoplastic resin sheet for molding |
DE4141989A1 (en) * | 1991-12-19 | 1993-06-24 | Hoechst Ag | Transparent multilayer polyolefin film with high transverse shrinkage - contains co-extruded base layer and outer layers based on co- or terpolymer(s) of ethylene, propylene, butene and other olefin(s) |
JPH097563A (en) * | 1995-06-22 | 1997-01-10 | Matsushita Electric Ind Co Ltd | Battery and battery holder |
JPH09320555A (en) * | 1996-06-03 | 1997-12-12 | Sony Corp | Polarity indicating part of battery case and polarity indicating method |
DE19726742B4 (en) * | 1997-06-24 | 2007-06-06 | Vb Autobatterie Gmbh & Co. Kgaa | Method for producing a battery cover, accumulator cover and accumulator |
-
2000
- 2000-10-06 DE DE10049455A patent/DE10049455A1/en not_active Withdrawn
-
2001
- 2001-09-29 JP JP2002535184A patent/JP2004511886A/en active Pending
- 2001-09-29 WO PCT/EP2001/011278 patent/WO2002031899A1/en not_active Application Discontinuation
- 2001-09-29 EP EP01986799A patent/EP1226615A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO0231899A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2002031899A1 (en) | 2002-04-18 |
DE10049455A1 (en) | 2002-04-11 |
JP2004511886A (en) | 2004-04-15 |
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